Home / 188,721.34-260,442.60-108,164.41

Finding the Fourth Proportional to 188,721.34, 260,442.60 and 108,164.41

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Solution

The fourth proportional to 188,721.34, 260,442.60 and 108,164.41 is: 149,270.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,721.34 : 260,442.60 = 108,164.41 : x
  2. Step 2: Convert to fraction form
    188,721.34/260,442.60 = 108,164.41/x
  3. Step 3: Cross multiply
    188,721.34x = 260,442.60 × 108,164.41
  4. Step 4: Simplify right side
    188,721.34x = 28,170,620,167.87
  5. Step 5: Solve for x
    x = 28,170,620,167.87/188,721.34
  6. Step 6: Final answer
    x = 149,270.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.